hivesaeed4 said:Suppose a function is defined as:
f(x,y)=0 for x=y=0
Does this mean that the function would be zero when both x and y are xero or when either one of them are zero?
X and y values refer to the two variables in a coordinate system. The x value represents the horizontal position of a point, while the y value represents the vertical position. In other words, the x value tells you how far left or right a point is, and the y value tells you how far up or down.
To plot x and y values on a graph, first decide on a scale for each axis. Then, for each pair of x and y values, find the corresponding point on the graph and mark it. Finally, connect the points to create a line or scatter plot.
If the x and y values are switched, the resulting graph will be rotated 90 degrees counterclockwise. This is because the x value now represents the vertical position and the y value represents the horizontal position.
Yes, x and y values can be negative. In a coordinate system, the x axis extends to the left and right, while the y axis extends up and down. Therefore, points can have negative x and y values depending on their position in relation to the origin (0,0).
X and y values are used to represent the independent and dependent variables in mathematical equations. The x value is usually the independent variable, meaning it can be changed freely, while the y value is the dependent variable, meaning it is affected by changes in the x value.